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| | Juju can deploy to LXC <ref>See also: [[Docker]]</ref> (for local environments), OpenStack (for HP Cloud), Windows Azure, Joyent or Amazon EC2 | | Juju can deploy to LXC <ref>See also: [[Docker]]</ref> (for local environments), OpenStack (for HP Cloud), Windows Azure, Joyent or Amazon EC2 |
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| − | Kapil Thangavelu wrote [https://github.com/kapilt/juju-digitalocean JuDo] - A juju provider for [[Digital Ocean]] using a client side plugin and manual provisioning.
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| | | | |
| | == Links == | | == Links == |
| − | # https://jujucharms.com/get-started | + | # https://juju.is/ |
| − | | + | # https://juju.is/docs/juju/tutorial |
| − | # https://jujucharms.com/docs/1.20/config-manual | + | # https://charmhub.io/ |
| − | # https://jujucharms.com/docs/1.20/config-aws
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| − | # https://jujucharms.com/docs/1.20/config-digitalocean
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| − | # https://jujucharms.com/docs/1.20/config-vagrant
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| − | | |
| − | == TLDR ==
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| − | <source lang="bash">
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| − | sudo add-apt-repository ppa:juju/stable
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| − | sudo apt-get install juju-quickstart
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| − | sudo apt-get install juju-core
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| − | # to just show existing/default | |
| − | # juju generate-config --show
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| − | juju generate-config
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| − | # edit to add your AWS KEYS
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| − | juju bootstrap
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| − | juju status
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| − | # assuming it shows a single machine numbered '0'
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| − | juju deploy apache2 --to 0
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| − | juju deploy mediawiki --to 0
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| − | # in our test, this deployed cs:trusty/mediawiki-3
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| − | juju deploy mysql --to 0
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| − | juju add-relation mediawiki:db mysql
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| − | juju expose apache2
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| − | juju expose mediawiki
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| − | juju status
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| − | juju ssh 0
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| − | </source>
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| − | | |
| − | You'll end up with an address like this <ref>
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| − | When setting up a service on EC2, make sure to obtain and assign an "elastic IP" so that the instance has a static IP. Otherwise every shutdown will result in a different public IP address being assigned to the instance.
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| − | </ref>
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| − | http://52.5.215.128/mediawiki/index.php/Special:Version
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| − | with
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| − | * Ubuntu 14.04.2 LTS (Trusty Tahr)
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| − | * Apache 2.4.7 (Ubuntu) (with MaxRequestWorkers at 2048 which would require 32 servers while servers is set at 16 = sloppy)
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| − | * MediaWiki <code>1.19.14+dfsg-1</code> installed with no extensions, and no git
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| − | * PHP 5.5.9-1ubuntu4.7 (apache2handler)
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| − | * MySQL 5.5.41-0ubuntu0.14.04.1-log
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| − | | |
| − | | |
| − | | |
| − | You can see what keys were added to the machine
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| − | <code>juju authorised-keys list</code>
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| − | and verify the key fingerprint for the key you want to use
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| − | <code>ssh-keygen -lf /home/user/.ssh/id_rsa</code>
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| − | | |
| − | but you have to know/guess what user was installed by your charm
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| − | | |
| − | <code>ssh -i /home/user/.ssh/id_rsa -o IdentitiesOnly=true -vvv ubuntu@ec2-55-5-555-55.compute-1.amazonaws.com</code>
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| − | | |
| − | https://jujucharms.com/mediawiki/trusty/3
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| − | | |
| − | | |
| − | == Help ==
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| − | <source lang="bash">
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| − | juju help
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| − | </source>
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| − | <pre>
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| − | | |
| − | Juju -- devops distilled
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| − | https://juju.ubuntu.com/
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| − | | |
| − | Juju provides easy, intelligent service orchestration on top of environments
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| − | such as Amazon EC2, HP Cloud, OpenStack, MaaS, or your own local machine.
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| − | | |
| − | Basic commands:
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| − | juju init generate boilerplate configuration for juju environments
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| − | juju bootstrap start up an environment from scratch
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| − | | |
| − | juju deploy deploy a new service
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| − | juju add-relation add a relation between two services
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| − | juju expose expose a service
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| − | | |
| − | juju help bootstrap more help on e.g. bootstrap command
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| − | juju help commands list all commands
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| − | juju help glossary glossary of terms
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| − | juju help topics list all help topics
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| − | | |
| − | Provider information:
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| − | juju help azure-provider use on Windows Azure
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| − | juju help ec2-provider use on Amazon EC2
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| − | juju help hpcloud-provider use on HP Cloud
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| − | juju help local-provider use on this computer
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| − | juju help openstack-provider use on OpenStack
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| − | </pre>
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| − | | |
| − | === Commands ===
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| − | <source lang="bash">
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| − | juju help commands
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| − | </source>
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| − | <pre>
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| − | add-machine alias for 'machine add'
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| − | add-relation add a relation between two services
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| − | add-unit add one or more units of an already-deployed service
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| − | api-endpoints print the API server address(es)
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| − | api-info print the field values used to connect to the environment's API servers
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| − | authorised-keys alias for 'authorized-keys'
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| − | authorized-keys manage authorized ssh keys
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| − | backups create, manage, and restore backups of juju's state
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| − | block block an operation that would alter a running environment
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| − | bootstrap start up an environment from scratch
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| − | cached-images manage cached os images
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| − | debug-hooks launch a tmux session to debug a hook
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| − | debug-log display the consolidated log file
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| − | deploy deploy a new service
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| − | destroy-environment terminate all machines and other associated resources for an environment
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| − | destroy-machine alias for 'machine remove'
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| − | destroy-relation alias for 'remove-relation'
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| − | destroy-service alias for 'remove-service'
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| − | destroy-unit alias for 'remove-unit'
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| − | ensure-availability ensure the availability of Juju state servers
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| − | env alias for 'switch'
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| − | environment manage environments
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| − | expose expose a service
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| − | generate-config alias for 'init'
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| − | get get service configuration options
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| − | get-constraints view constraints on the environment or a service
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| − | get-env alias for 'environment get'
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| − | get-environment alias for 'environment get'
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| − | help show help on a command or other topic
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| − | help-tool show help on a juju charm tool
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| − | init generate boilerplate configuration for juju environments
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| − | machine manage machines
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| − | publish publish charm to the store
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| − | remove-machine alias for 'machine remove'
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| − | remove-relation remove a relation between two services
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| − | remove-service remove a service from the environment
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| − | remove-unit remove service units from the environment
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| − | resolved marks unit errors resolved
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| − | retry-provisioning retries provisioning for failed machines
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| − | run run the commands on the remote targets specified
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| − | scp launch a scp command to copy files to/from remote machine(s)
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| − | set set service config options
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| − | set-constraints set constraints on the environment or a service
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| − | set-env alias for 'environment set'
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| − | set-environment alias for 'environment set'
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| − | ssh launch an ssh shell on a given unit or machine
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| − | stat alias for 'status'
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| − | status output status information about an environment
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| − | switch show or change the default juju environment name
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| − | sync-tools copy tools from the official tool store into a local environment
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| − | terminate-machine alias for 'machine remove'
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| − | unblock unblock an operation that would alter a running environment
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| − | unexpose unexpose a service
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| − | unset set service config options back to their default
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| − | unset-env alias for 'environment unset'
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| − | unset-environment alias for 'environment unset'
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| − | upgrade-charm upgrade a service's charm
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| − | upgrade-juju upgrade the tools in a juju environment
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| − | user manage user accounts and access control
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| − | version print the current version
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| − | </pre>
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| − | | |
| − | | |
| − | Setting up a MediaWiki instance with Juju, using the https://jujucharms.com/mediawiki/trusty/3 charm was completely unacceptable. The charm doesn't even setup a web server environment at all so it doesn't work "out of the box". When I specified an Apache2 charm https://jujucharms.com/apache2/trusty/13/ the configuration has a miscompiled PHP and also conflicting configurations (ServerLimit, MaxRequestWorkers) that causes errors in the log.
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| | | | |
| − | <pre>
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| − | root@ip-172-31-57-182:~# /usr/sbin/apache2 -S
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| − | [Thu Apr 09 13:42:06.748287 2015] [core:warn] [pid 2247] AH00111: Config variable ${APACHE_LOCK_DIR} is not defined
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| − | [Thu Apr 09 13:42:06.748800 2015] [core:warn] [pid 2247] AH00111: Config variable ${APACHE_PID_FILE} is not defined
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| − | [Thu Apr 09 13:42:06.749138 2015] [core:warn] [pid 2247] AH00111: Config variable ${APACHE_RUN_USER} is not defined
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| − | [Thu Apr 09 13:42:06.749457 2015] [core:warn] [pid 2247] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
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| − | [Thu Apr 09 13:42:06.749808 2015] [core:warn] [pid 2247] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
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| − | [Thu Apr 09 13:42:06.786167 2015] [:crit] [pid 2247:tid 139742374446976] Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe. You need to recompile PHP.
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| − | AH00013: Pre-configuration failed
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| − | root@ip-172-31-57-182:~# /usr/sbin/apache2 -M
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| − | [Thu Apr 09 13:42:19.687521 2015] [core:warn] [pid 2248] AH00111: Config variable ${APACHE_LOCK_DIR} is not defined
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| − | [Thu Apr 09 13:42:19.688010 2015] [core:warn] [pid 2248] AH00111: Config variable ${APACHE_PID_FILE} is not defined
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| − | [Thu Apr 09 13:42:19.688345 2015] [core:warn] [pid 2248] AH00111: Config variable ${APACHE_RUN_USER} is not defined
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| − | [Thu Apr 09 13:42:19.688604 2015] [core:warn] [pid 2248] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
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| − | [Thu Apr 09 13:42:19.688886 2015] [core:warn] [pid 2248] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
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| − | [Thu Apr 09 13:42:19.700934 2015] [:crit] [pid 2248:tid 140047498663808] Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe. You need to recompile PHP.
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| − | AH00013: Pre-configuration failed
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| − | </pre>
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| | {{References}} | | {{References}} |
